1. Department of Organic Chemistry, Faculty of Science, The University of Yaoundé, Yaoundé, Cameroon
2. Drug discovery and Smart Molecules Research Laboratory, Department of Chemical Sciences, University of Johannesburg, Johannesburg, South Africa
3. Centre for Natural Product Research (CNPR), Chemical Sciences Department, University of Johannesburg, Doornfontein, Johannesburg, South Africa
4. Research Center for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg-Kingsway Campus, South Africa
5. Department of Chemical Engineering, School of Chemical Engineering and Mineral Industries, University of Ngaoundéré, Ngaoundéré, Cameroon
6. Department of Medical Services and Techniques, Koycegiz Vocational School of Health Services, Mugla Sitki Kocman University, Mugla, Turkey